How to use nRF Toolbox source for simple connection and read/write operation over BLE device?

[Vivek]

Hello, I have develop an android application which connects to BLE device and perform read and write operation, so for this i was using Android-nRF-UART . But my application is not running stable on android version 6.0 (marshmallow) as there is some connection delay added in this version. So the solution i got to make my app stable is I need to use nRF Toolbox instead of Android-nRF-UART , but the problem is nRF Toolbox has multiple feature and i want it to use it for simply connection and read/ write operation. I'm facing difficulty to identify simplified source code that i can use. Hope you will provide me optimum solution that will solve my problem.

Thank You

[Vivek]

ok, I will test this code with ble_app_blinky, just to check the BLE manager. But I want an app with UART service not lbs. So if you have an updated app with UART service APIs, please suggest.